cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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pci-bcm47xx.c (2829B)

      1/*
      2 *  Copyright (C) 2008 Aurelien Jarno <aurelien@aurel32.net>
      3 *
      4 *  This program is free software; you can redistribute  it and/or modify it
      5 *  under  the terms of  the GNU General  Public License as published by the
      6 *  Free Software Foundation;  either version 2 of the  License, or (at your
      7 *  option) any later version.
      8 *
      9 *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
     10 *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
     11 *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
     12 *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
     13 *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     14 *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
     15 *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
     16 *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
     17 *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     18 *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     19 *
     20 *  You should have received a copy of the  GNU General Public License along
     21 *  with this program; if not, write  to the Free Software Foundation, Inc.,
     22 *  675 Mass Ave, Cambridge, MA 02139, USA.
     23 */
     24
     25#include <linux/types.h>
     26#include <linux/pci.h>
     27#include <linux/ssb/ssb.h>
     28#include <linux/bcma/bcma.h>
     29#include <bcm47xx.h>
     30
     31int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
     32{
     33	return 0;
     34}
     35
     36#ifdef CONFIG_BCM47XX_SSB
     37static int bcm47xx_pcibios_plat_dev_init_ssb(struct pci_dev *dev)
     38{
     39	int res;
     40	u8 slot, pin;
     41
     42	res = ssb_pcibios_plat_dev_init(dev);
     43	if (res < 0) {
     44		pci_alert(dev, "PCI: Failed to init device\n");
     45		return res;
     46	}
     47
     48	pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &pin);
     49	slot = PCI_SLOT(dev->devfn);
     50	res = ssb_pcibios_map_irq(dev, slot, pin);
     51
     52	/* IRQ-0 and IRQ-1 are software interrupts. */
     53	if (res < 2) {
     54		pci_alert(dev, "PCI: Failed to map IRQ of device\n");
     55		return res;
     56	}
     57
     58	dev->irq = res;
     59	return 0;
     60}
     61#endif
     62
     63#ifdef CONFIG_BCM47XX_BCMA
     64static int bcm47xx_pcibios_plat_dev_init_bcma(struct pci_dev *dev)
     65{
     66	int res;
     67
     68	res = bcma_core_pci_plat_dev_init(dev);
     69	if (res < 0) {
     70		pci_alert(dev, "PCI: Failed to init device\n");
     71		return res;
     72	}
     73
     74	res = bcma_core_pci_pcibios_map_irq(dev);
     75
     76	/* IRQ-0 and IRQ-1 are software interrupts. */
     77	if (res < 2) {
     78		pci_alert(dev, "PCI: Failed to map IRQ of device\n");
     79		return res;
     80	}
     81
     82	dev->irq = res;
     83	return 0;
     84}
     85#endif
     86
     87int pcibios_plat_dev_init(struct pci_dev *dev)
     88{
     89#ifdef CONFIG_BCM47XX_SSB
     90	if (bcm47xx_bus_type ==	 BCM47XX_BUS_TYPE_SSB)
     91		return bcm47xx_pcibios_plat_dev_init_ssb(dev);
     92#endif
     93#ifdef CONFIG_BCM47XX_BCMA
     94	if  (bcm47xx_bus_type ==  BCM47XX_BUS_TYPE_BCMA)
     95		return bcm47xx_pcibios_plat_dev_init_bcma(dev);
     96#endif
     97	return 0;
     98}